This guide will show you how to generate Putty keys on Windows.

Prerequisites

Make sure you have the putty package installed.

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sudo apt-get update
sudo apt-get install putty

Generate Putty Key

To generate a Putty key:

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# generate a Putty key
puttygen -t rsa -o my_key.ppk

This will prompt you for a passphrase (you can leave it blank if you don’t want to use one) and then generate a private key file my_key.ppk.